CodecError CCodec_DXT5::Decompress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, CMP_DWORD_PTR pUser1, CMP_DWORD_PTR pUser2)
{
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
const CMP_DWORD dwBlocksXY = dwBlocksX*dwBlocksY;
bool bUseFixed = (!bufferOut.IsFloat() && bufferOut.GetChannelDepth() == 8 && !m_bUseFloat);
for(CMP_DWORD j = 0; j < dwBlocksY; j++)
{
for(CMP_DWORD i = 0; i < dwBlocksX; i++)
{
CMP_DWORD compressedBlock[4];
bufferIn.ReadBlock(i*4, j*4, compressedBlock, 4);
if(bUseFixed)
{
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
DecompressRGBABlock(destBlock, compressedBlock);
bufferOut.WriteBlockRGBA(i*4, j*4, 4, 4, destBlock);
}
else
{
float destBlock[BLOCK_SIZE_4X4X4];
DecompressRGBABlock(destBlock, compressedBlock);
bufferOut.WriteBlockRGBA(i*4, j*4, 4, 4, destBlock);
}
}
if (pFeedbackProc)
{
float fProgress = 100.f * (j * dwBlocksX) / dwBlocksXY;
if (pFeedbackProc(fProgress, pUser1, pUser2))
{
return CE_Aborted;
}
}
}
return CE_OK;
}
CodecError CCodec_ATC_RGBA_Interpolated::Decompress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, CMP_DWORD_PTR pUser1, CMP_DWORD_PTR pUser2)
{
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
const CMP_DWORD dwBlocksXY = dwBlocksX*dwBlocksY;
CMP_DWORD compressedBlock[4];
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
for(CMP_DWORD j = 0; j < dwBlocksY; j++)
{
for(CMP_DWORD i = 0; i < dwBlocksX; i++)
{
bufferIn.ReadBlock(i*4, j*4, compressedBlock, 4);
DecompressRGBABlock_InterpolatedAlpha(destBlock, compressedBlock);
bufferOut.WriteBlockRGBA(i*4, j*4, 4, 4, destBlock);
}
if (pFeedbackProc)
{
float fProgress = 100.f * (j * dwBlocksX) / dwBlocksXY;
if (pFeedbackProc(fProgress, pUser1, pUser2))
{
return CE_Aborted;
}
}
}
return CE_OK;
}
CodecError CCodec_GT::Decompress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, DWORD_PTR pUser1, DWORD_PTR pUser2)
{
assert(bufferIn.GetWidth() == bufferOut.GetWidth());
assert(bufferIn.GetHeight() == bufferOut.GetHeight());
CodecError err = InitializeGTLibrary();
if (err != CE_OK) return err;
if(bufferIn.GetWidth() != bufferOut.GetWidth() || bufferIn.GetHeight() != bufferOut.GetHeight())
return CE_Unknown;
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + 3) >> 2);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight() + 3) >> 2);
const CMP_DWORD dwBlocksXY = dwBlocksX*dwBlocksY;
for(CMP_DWORD j = 0; j < dwBlocksY; j++)
{
for(CMP_DWORD i = 0; i < dwBlocksX; i++)
{
union FBLOCKS
{
BYTE decodedBlock[16][4];
BYTE destBlock[BLOCK_SIZE_4X4X4];
} DecData;
union BBLOCKS
{
CMP_DWORD compressedBlock[4];
BYTE out[16];
BYTE in[16];
} CompData;
CMP_BYTE destBlock[BLOCK_SIZE_4X4X4];
bufferIn.ReadBlock(i*4, j*4, CompData.compressedBlock, 4);
// Encode to the appropriate location in the compressed image
m_decoder->DecompressBlock(DecData.decodedBlock,CompData.in);
// Create the block for decoding
int srcIndex = 0;
for(int row=0; row < BLOCK_SIZE_4; row++)
{
for(int col=0; col<BLOCK_SIZE_4; col++)
{
destBlock[srcIndex] = (CMP_BYTE)DecData.decodedBlock[row*BLOCK_SIZE_4+col][BC_COMP_RED];
destBlock[srcIndex+1] = (CMP_BYTE)DecData.decodedBlock[row*BLOCK_SIZE_4+col][BC_COMP_GREEN];
destBlock[srcIndex+2] = (CMP_BYTE)DecData.decodedBlock[row*BLOCK_SIZE_4+col][BC_COMP_BLUE];
destBlock[srcIndex+3] = (CMP_BYTE)DecData.decodedBlock[row*BLOCK_SIZE_4+col][BC_COMP_ALPHA];
srcIndex+=4;
}
}
bufferOut.WriteBlockRGBA(i*4, j*4, 4, 4, destBlock);
}
if (pFeedbackProc)
{
float fProgress = 100.f * (j * dwBlocksX) / dwBlocksXY;
if (pFeedbackProc(fProgress, pUser1, pUser2))
{
#ifdef GT_COMPDEBUGGER
g_CompClient.disconnect();
#endif
return CE_Aborted;
}
}
}
return CE_OK;
}
// notes:
// Slow CPU based decompression : Should look into also using HW based decompression with this interface
//
CodecError CCodec_ASTC::Decompress(CCodecBuffer& bufferIn, CCodecBuffer& bufferOut, Codec_Feedback_Proc pFeedbackProc, CMP_DWORD_PTR pUser1, CMP_DWORD_PTR pUser2)
{
m_xdim = bufferIn.GetBlockWidth();
m_ydim = bufferIn.GetBlockHeight();
m_zdim = 1;
CodecError err = InitializeASTCLibrary();
if (err != CE_OK) return err;
// Our Compressed data Blocks are always 128 bit long (4x4 blocks)
const CMP_DWORD imageWidth = bufferIn.GetWidth();
const CMP_DWORD imageHeight = bufferIn.GetHeight();
const CMP_DWORD imageDepth = 1;
const BYTE bitness = 8;
const CMP_DWORD CompBlockX = bufferIn.GetBlockWidth();
const CMP_DWORD CompBlockY = bufferIn.GetBlockHeight();
CMP_BYTE Block_Width = bufferIn.GetBlockWidth();
CMP_BYTE Block_Height = bufferIn.GetBlockHeight();
const CMP_DWORD dwBlocksX = ((bufferIn.GetWidth() + (CompBlockX - 1)) / CompBlockX);
const CMP_DWORD dwBlocksY = ((bufferIn.GetHeight()+ (CompBlockY - 1)) / CompBlockY);
const CMP_DWORD dwBlocksZ = 1;
const CMP_DWORD dwBufferInDepth = 1;
// Override the current input buffer Pitch size (Since it will be set according to the Compressed Block Sizes
// and not to the Compressed Codec data which is for ASTC 16 Bytes per block x Number of blocks per row
bufferIn.SetPitch(16 * dwBlocksX);
// Output data size Pitch
CMP_DWORD dwPitch = bufferOut.GetPitch();
// Output Buffer
BYTE *pDataOut = bufferOut.GetData();
const CMP_DWORD dwBlocksXY = dwBlocksX*dwBlocksY;
for(CMP_DWORD cmpRowY = 0; cmpRowY < dwBlocksY; cmpRowY++) // Compressed images row = height
{
for(CMP_DWORD cmpColX = 0; cmpColX < dwBlocksX; cmpColX++) // Compressed images Col = width
{
union FBLOCKS
{
float decodedBlock[144][4]; // max 12x12 block size
float destBlock[576]; // max 12x12x4
} DecData;
union BBLOCKS
{
CMP_DWORD compressedBlock[4];
BYTE out[16];
BYTE in[16];
} CompData;
bufferIn.ReadBlock(cmpColX*4, cmpRowY*4, CompData.compressedBlock, 4);
// Encode to the appropriate location in the compressed image
m_decoder->DecompressBlock(Block_Width, Block_Height, bitness, DecData.decodedBlock,CompData.in);
// Now that we have a decoded block lets copy that data over to the target image buffer
CMP_DWORD outCol = cmpColX*Block_Width;
CMP_DWORD outRow = cmpRowY*Block_Height;
CMP_DWORD outImgRow = outRow;
CMP_DWORD outImgCol = outCol;
for (int row = 0; row < Block_Height; row++)
{
CMP_DWORD nextRowCol = (outRow+row)*dwPitch + (outCol * 4);
CMP_BYTE* pData = (CMP_BYTE*)(pDataOut + nextRowCol);
if ((outImgRow + row) < imageHeight)
{
outImgCol = outCol;
for (int col = 0; col < Block_Width; col++)
{
CMP_DWORD w = outImgCol + col;
if (w < imageWidth)
{
int index = row*Block_Width + col;
*pData++ = (CMP_BYTE)DecData.decodedBlock[index][BC_COMP_RED];
*pData++ = (CMP_BYTE)DecData.decodedBlock[index][BC_COMP_GREEN];
*pData++ = (CMP_BYTE)DecData.decodedBlock[index][BC_COMP_BLUE];
*pData++ = (CMP_BYTE)DecData.decodedBlock[index][BC_COMP_ALPHA];
}
else break;
}
}
}
}
if (pFeedbackProc)
{
float fProgress = 100.f * (cmpRowY * dwBlocksX) / dwBlocksXY;
if (pFeedbackProc(fProgress, pUser1, pUser2))
{
return CE_Aborted;
}
}
}
return CE_OK;
}
